<template>
  <div>
    <!-- 面包屑导航区域 breadcrumb ブレッドクラム separator セパレーター 分隔器-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userList" :border="true" stripe>
        <el-table-column type="index" label="No"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- scope.row代表所在行的所有数据 -->
            <!-- {{scope.row}} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色按钮"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"

      
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username" clearable></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" clearable></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email" clearable></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile" clearable></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改编辑用户的对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editdialogVisible"
      width="50%"
      @close="editdialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled=""></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email" clearable></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile" clearable></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editdialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="50%"
      @close ="setRoledialogClosed"
    >
      <div>
        <p>当前用户:{{userInfo.username}}</p>
        <p>当前角色:{{userInfo.role_name}}</p>
        <p>分配新角色: 
          <template>
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
              </el-option>
            </el-select>
          </template>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoledialogVisible = false">取 消</el-button>
        <el-button 
          type="primary" 
          @click="saveRoleInfo"
        >
          确 定
        </el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    //   验证邮箱规则
    var checkEmail = (rule, value, callback) => {
      //   验证邮箱正则
      var regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        //验证合法
        return callback()
      }
      callback(new Error('请输入正确的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      //   验证手机号正则
      var regMobie = /^(0|86|17951)?(13[0-9]|15[123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobie.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确的手机号'))
    }

    return {
      queryInfo: {
        query: '',
        //当前页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2
      },
      userList: [],
      userInfo:{},
      //所有角色的数据列表
      rolesList:[],
      selectedRoleId:'',
      total: 0,
      //   控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //    控制修改用户对话框的显示与隐藏
      editdialogVisible: false,
      //    控制分配角色对话框的显示与隐藏
      setRoledialogVisible:false,
      //   修改用户按钮查询到的用户信息
      editForm: {},
      //   添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //   添加用户的表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //   修改用户的表单验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听页数改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听当前页数改变
    handleCurrentChange(newSize) {
      this.queryInfo.pagenum = newSize
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      return this.$message.success('更新用户状态成功')
    },
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //预验证
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 验证通过，发起添加用户请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        //    关闭对话框
        this.addDialogVisible = false
        //    重新获取用户列表
        this.getUserList()
      })
    },
    //编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('修改用户信息失败')
      }
      this.editForm = res.data
      this.editdialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editdialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        // 验证w未通过
        if (!valid) return
        // 验证通过，发起添加用户请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('修改用户信息失败')
        }
        // 关闭对话框`
        this.editdialogVisible = false
        //刷新数据
        this.getUserList()
        // 提示修改成功
        this.$message.success('修改用户信息成功')
      })
    },
    async removeUserById(id) {
      const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 用户确认删除,则返回值为字符串 confirm
      // 用户取消删除,则返回值为字符串 cancel
      // console.log(confirmResult)
      if(confirmResult !== "confirm"){
        return this.$message.info('已取消删除')
      }

      const {data:res} = await this.$http.delete('users/'+id)
      if(res.meta.status !== 200){
        return this.$message.error("删除用户失败")
      }

       this.$message.success("删除用户成功")
       this.getUserList();
    },
    //展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      //获取所有角色列表
      const {data:res} = await this.$http.get('roles')
      if(res.meta.status !== 200){t
        return this.$message.error('获取角色列表失败')
      }

      this.rolesList = res.data;
      console.log(this.rolesList)
      this.setRoledialogVisible = true
    },
    // 分配角色的确定按钮
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return  this.$message.error("请选择角色")
      }

      const {data:res} =await this.$http.put(`users/${this.userInfo.id}/role`,{
        rid: this.selectedRoleId
      })
      if(res.meta.status !==200){
        this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    setRoledialogClosed(){
      this.selectedRoleId = ''
      this.userInfo = {}
    },
  }
}
</script>
<style lang="less" scoped></style>
